APA (7. basım) Alıntı

(1989). COBOL: A software engineering introduction / James G. Janossy.

Chicago Style (17. basım) Atıf

COBOL: A Software Engineering Introduction / James G. Janossy. 1989.

MLA (9th ed.) Atıf

COBOL: A Software Engineering Introduction / James G. Janossy. 1989.